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4
votes
1answer
33 views

1997 Escort idles rough when a/c is off

Escort runs great with heater or a/c on. It runs rough and sometimes dies when they're off. What could be the problem?
6
votes
0answers
25 views

Vibration felt, heard and seen when in Drive at stop but disappears when shifted to Neutral

2010 Jeep Patriot FD2 4x4 38,000 miles Well maintained vehicle with low mileage. Excessive vibration noticed beginning 6 months ago. Have changed spark plugs, air filter, Premium gas used with double ...
6
votes
1answer
55 views

'96 Saab starts, stalls

My poor Saab 900 is having touble getting going. I was away for about a month, and got the oil changed before I left. When I came back, I drove the car to my grandmother's and back, about 15 minutes ...
-1
votes
1answer
32 views

2010 Hyundai Accent starts but won't stay running

Car would stop running while driving it and wouldn't start after that; changed the alternator and now it will start but it doesn't stay running. It stalls every time I try to put it in gear to drive ...
5
votes
0answers
511 views

What causes more gas consumption - Idling with AC or Heat? [duplicate]

So I have begun doing some research on the effects of idling. So my question is, does idling with the AC or heater on affect how much gas is given off? If possible, please give the percent of extra ...
9
votes
2answers
61 views

Why Have More Than One IAC Type Device On an Engine?

I've had two Mazda's, a 97 323 and 98 626. On both these car's engines there was only a single IAC mounted on top of the throttle body, and no other device for adding air flow on the intake side. ...
5
votes
2answers
56 views

RPMs jump to 2500 when clutch is disengaged or transmission put in neutral

Good morning all. I drive an 05 Chevy Cavalier, 2.2L, 5-spd manual trans. Lately I've been having issues which I am told is throttle related. As I'm driving for a little bit (time varies) I go to ...
5
votes
0answers
30 views

1987 Dodge D150 High Idle and Dieseling

Truck is the high altitude/California emissions model, 318. Carburetor has been replaced with a 4 barrel Holley 4160 I believe, although it might be a 4150, intake manifold was replaced to fit the ...
5
votes
2answers
152 views

A/C Temporarily Cures Low, Hiccupping Idle

I have a 99 Nissan Almera 1.6L MTX ( nearly identical to the Sentra sold in the US ) which has developed a problem with low idle, occasional stalling at stop lights, what seems to be misfires and ...
5
votes
2answers
312 views

Is manual start/stop good on older cars?

I have an old car (but with electronic injection) that predates by far start/stop systems which are used nowadays to save fuel (turning off the engine brings savings after 3-5 seconds, see Calculating ...
5
votes
2answers
261 views

Car stored for 6 months shows low oil level after 300 miles

Just bought a car from a BMW dealer and the guy told me it was sitting for almost 6 months before I came to purchase it. When I left the dealership the oil was above the min mark showing green. Drove ...
3
votes
2answers
46 views

2002 Ford F-150 idle problem

Ok once in a while when I turn on my 2002 Ford F-150 the RPM's go from 1000 to 800 then back to 1000 over and over and this is at idle. I haven't gone to get it looked at and I want to see if it's ...
3
votes
1answer
148 views

Resolved: Idle RPMs fluctuate and engine hesitation

I am kind of stumped. I have a 1996 Toyota Rav4 that is acting weird. Let me start with the list of recent repairs. I gave it: a tune-up (new sparks, wires, distributor cap and rotor) changed the ...
3
votes
1answer
139 views

Big motorcycles at stop lights; why do they keep blipping the throttle?

We've all been near a big Harley at a stop light, where the rider keeps blipping the throttle. I've always wondered why they do this. Is it because those big pistons don't idle very well, and if you ...
8
votes
0answers
204 views

Vibration at idle, much worse after warm

My car is a 2001 Pontiac Firebird with a V6 (3800 Series II (L36)) and a manual transmission. These are all at a stop: When the car is cold, I don't feel too much vibration when sitting in it. (I ...
4
votes
2answers
219 views

Why do engines run badly below the normal idle speed?

When the engine speed in my petrol car drops below about 650-700 RPM - the normal idle speed - it starts to shake and judder. This could be because say, I didn't give enough gas when pulling away. ...
3
votes
1answer
18 views

2000 mazda 626 v6

My Mazda shuts off when I apply the brakes. Can anyone help me with this problem. It idles just fine but when I apply the brake to put it in reverse it bogs down and completely shuts off. What could ...
3
votes
0answers
115 views

Engine Running Fast in Park

Never had this issue before but I just started my vehicle and the tac automatically revved up to 1500 rpm when I cranked it. It didn't go back down while in park, it basically idled at about 500 rmp ...
3
votes
1answer
47 views

High idle, not shifting gears - 1995 Mercury Mystique

My friend has a 1995 Mercury Mystique that was suffering from low idle problems (stalling out at stoplights, etc). He replaced the throttle position sensor, and after that the low idle problem was ...
3
votes
1answer
34 views

1995 Mercury Sable 3.8l - 2300rpm at Starting Of Engine but Will Not Fall Below 1500rpms

This car is driving me absolutely batty. I have never had any problems with it before. The other day I drove my car to Vegas airport from Orange County (about 4 hr drive) and my car died on me 6 ...
5
votes
0answers
43 views

Idle drop in 1991 Buick Park Avenue

I have a 91 Buick park Ave that is experiencing these symptoms. When starting from a cold start the engine will turn over, reach around 1000 rpm, then die. When applying gas and turning the key the ...
1
vote
1answer
81 views

98 honda accord 3.0 v6 bad idle, running issue

I have a 98 accord v6 that will jump idle between 1k and 2.2k rpm. When driving this is not too much of an issue until the transmission down shifts then the engine tries to catch up. Getting ...
6
votes
2answers
695 views

Do you need charged battery for car to Idle

I am planning to acquire a 2001 Mitsubishi lancer 1.5 the car runs perfect but the it has an almost flat battery, even the horn doesn't work unless driven around.(No starting Problem though weirdly) ...
4
votes
2answers
224 views

High idle while coasting in neutral

I have a 1999 Chevrolet Camaro with a 5.7 liter engine and a manual transmission. It recently started idling high but only when coasting. If I slow down because of a stop sign or whatever and hit ...
6
votes
1answer
232 views

Jeep stalls after about 10-15 minutes driving or idling

1996 Jeep Grand Cherokee Limited This just started yesterday. Instance#1: After about 10-15 of driving (note: It had been about 12 hrs since it was last used) I was waiting at a traffic light when ...
3
votes
1answer
152 views

Falling RPM's and Stalls after Releasing the Clutch

Once my 97 Mazda 323 get's up to normal operating temperature, around say 90 C, the RPM's will occasionally nosedive after taking it out of gear, releasing the clutch and letting off the gas. What I ...
3
votes
2answers
279 views

Poor idle speed when engine is warm

I drive a Mitsubishi Eclipse 2000 2.4L. In the past few days my car has started to idle horribly when the engine warms up. While it is cold, the rpms seem to be normal except for a small fluctuation ...
5
votes
2answers
2k views

How does air get into the engine with a bad IAC?

My understanding of the IAC is that the idle air control valve basically supplies air to the cylinders/engine when the throttle body is completely closed/shut. Per wikipedia, "The ECU can control the ...
3
votes
2answers
425 views

BMW e36 wont maintain idle

A friend has an e36 that wont maintain idle. The car is driveable but coughs and stops when idling. I've checked the air box and boot and they are in good condition - no leaks. I think spark and ...
2
votes
2answers
595 views

Power Steering non functional at idle

Replaced a leaking power steering pump in my 99 Nissan Maxima about a month and a half ago. Bought the new pump from NAPA, used NAPA branded power steering fluid. My buddy and I switched out the pump, ...
1
vote
3answers
1k views

Fast Idle and High Fuel Consumption

I just bought a Manual 97 Mazda Lantis 323 1.8L DOHC 16 Valve BP and I was amazed that it went through 1/4 tank gas ( about 12.5 liters or 3.3 gallons ) in one day after about 60 kilometers / 37 miles ...
1
vote
1answer
280 views

Mk1 VW Golf/Rabbit - Engine idle fluctuates at random times

I have a Mk1 VW Golf/Rabbit with K-Jet mechanical injection. Occasionally when I pull up at stop lights the engine idle will rhythmically dip and climb (between 600 and 1200 rpm). This probably ...
0
votes
2answers
493 views

99 Mitsubishi Montero Sport idle problem

Upon starting, engine idles at about 1200 in park. When it warms up, idle drops to nothing, unless air conditioner is at max where rpm is roughly 400 to 500. Where should I start looking?
2
votes
1answer
447 views

Engine starts but almost immediately cuts out 3 or 4 times when starting

I have a Golf Mk2 that has been sitting a while and I am fixing up. When I start the car the engine catches but then dies almost immediately. I have to restart the car 3 or 4 times like this until the ...
4
votes
1answer
1k views

2005 Honda Accord cold start idle is low

I'm not a car expert so I don't know if I'm being alarmist or not but this problem just started happening the past week and seems to be getting worse fast. Hopefully the terms I'm using is helpful in ...
2
votes
0answers
170 views

2008 Honda Rebel 250 idle problem [closed]

I have a Honda Rebel and it's been running great for the last year. It does have about 8000 miles on it but I haven't had any serious issues. Lately, I noticed the idle was higher than normal. It ...
3
votes
2answers
994 views

Mini Cooper P1638 code

I have a 2007 Mini Cooper. It keeps throwing code P1638 on my code reader on these really really cold mornings, and the engine seems to search for idle, reving betwween 500RPM and 1400RPM. The car ...
4
votes
3answers
1k views

Extremely high then fluctuating idle at very cold temperatures

Twice in the past month my 92 Civic has exhibited really bad idle behavior in temperatures around 10-20 degrees F. When first starting the engine, it idles at something like 2000-2500 RPMs (by ear; no ...
5
votes
4answers
1k views

Engine repeatedly dies at shorter and shorter intervals this cold morning, finally won't start

I have Pontiac Grand Am 2004. It's been needing some regular maintenance, but other than that runs mostly fine. When I went out to start it this morning, it started fine. I went to start brushing snow ...
1
vote
1answer
142 views

Idle sometimes too high (BMWM50B25TU)

Yesterday I had to drive a lot and after 100 miles I noticed that the idle won't go below 1500 rpm (should be 600) on my 1993 BMW 525i (euro model), except when I drove slowly in a high gear. This ...
3
votes
2answers
828 views

2000 Dodge Ram 1500 won't idle

The battery died last week. After I jumped it I noticed the truck would only stay running if I was revving the engine. As soon as I take my foot off the gas rpm drops to 0 and the truck dies. ...
2
votes
1answer
835 views

Mazda 3 2004 Engine Revving when car not moving

I recently noticed when my car comes to a stop engine running and ac on the engine revs as if it wants to move forward. The rev isn't huge. When i am in traffic and holding down on the brakes, if i ...
1
vote
2answers
2k views

2000 3.8 L Ford Mustang Cov

2000 Ford Mustang 3.8L //// Engine Vehicle Shakes entire front end of car when at idle, all the way up to 2,000 rpms then it goes away. Starts right up, had problems with a few computer codes fixed ...
3
votes
3answers
980 views

Toyota camry 2003 , 2azfe - 2.4 L , vibrates at idling & does not accelerate properly

Recently I sent my Camry to the workshop as there was a blown water outlet pipe, and was told that the head gasket was damaged too. These were then replaced, and I took delivery of my car. But my ...
2
votes
2answers
462 views

2003 Toyota Camry 300 rpm with AC on

I have a 2003 Toyota Camry 4 cylinder with the AC on it runs at 300 rpm and stalls. What could be my problem and is there anyways to adjust the idle?
1
vote
1answer
103 views

engine speeds on startup (wont idle) after sitting for years - 1986 honda civic

Engine speeds on startup (wont idle) after sitting for years - 1986 honda civic. As soon as I turn the key on it will keep speeding up higher & higher.
2
votes
0answers
105 views

2000 Chevy Camaro starts, idles low around 1000 rpms for 4 or 5 seconds before dying [closed]

It's a 2000 Camaro v6 manual. Most days the car starts just fine but on other days I might have to start it 20 times before it stays on. When I start it, the RPM is around 1000 but slowly drops to ...
1
vote
1answer
760 views

How do you adjust the idle on a 1981 Suzuki GS 650 GL?

I'm asking this for a friend, so if you need more details, I'll have to ask him. He brought his bike with him when he moved, and with the elevation change, the idle isn't high enough. How can he ...
1
vote
2answers
633 views

Can an Idle Control Valve cause backfiring and can it be cleaned

I am pulling codes for my engine indicating a faulty idle control valve. The vehicle at idle seems to hunt jumping between about 800rpm and 1100rpm. It happens maybe every 20 seconds. If I accelerate ...
2
votes
1answer
417 views

1975 Honda XL 250 has erratic idle / high idle when it's cold out

As stated, I have a 1975 Honda XL 250. It has a 1 cylinder 250cc ~24hp carbureted engine. The problem I'm running into is an inconsistent idle. In general it seems to have a low idle (what I want it ...